Add support for same-owner config option

cmd/root.go

@@ -17,6 +17,7 @@ package cmd
 
 import (
 	"os"
+	"os/user"
 	"path/filepath"
 	"runtime"
 	"strings"
@@ -110,8 +111,19 @@ func init() {
 	pflags.StringVar(&cfgFile, "config", "", "config file (default is $HOME/.luet.yaml)")
 	pflags.BoolVarP(&Verbose, "verbose", "v", false, "verbose output")
 	pflags.Bool("fatal", false, "Enables Warnings to exit")
+
+	u, err := user.Current()
+	if err != nil {
+		Fatal("failed to retrieve user identity:", err.Error())
+	}
+	sameOwner := false
+	if u.Uid == "0" {
+		sameOwner = true
+	}
+	pflags.Bool("same-owner", sameOwner, "Maintain same owner on uncompress.")
 	pflags.Int("concurrency", runtime.NumCPU(), "Concurrency")
 
+	config.LuetCfg.Viper.BindPFlag("general.same_owner", pflags.Lookup("same-owner"))
 	config.LuetCfg.Viper.BindPFlag("general.debug", pflags.Lookup("verbose"))
 	config.LuetCfg.Viper.BindPFlag("general.concurrency", pflags.Lookup("concurrency"))
 	config.LuetCfg.Viper.BindPFlag("general.fatal_warnings", pflags.Lookup("fatal"))